Roger L. Davis

Clarissa advocates zealously and effectively for employee benefit plans, plan administrators, plan sponsors, and other fiduciaries before federal and state courts and government regulatory agencies. As a director in our nationally recognized ERISA litigation group (First Tier Nationally in US News and World Report Best Lawyers), she has handled a broad spectrum of litigation, including cases involving benefit claims, fiduciary issues, plan administration, multiemployer plans, withdrawal liabi...

Christopher L. Wanger is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Christopher L., who practices law in San Francisco, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher L. is held by other top lawyers in the same geographic and legal practice area.

Holding Corporations Accountable Robert J. Nelson has played a leading role in the firm’s False Claims Act (fraud against the government law), automotive , defective products , mass torts , tobacco , consumer fraud and environmental cases, taking on many of the world’s largest corporations and holding them accountable. He has served as court-appointed Lead or Co-Lead Counsel in numerous state and federal coordinated proceedings, as well as in more than 40 class actions. Robert lik...

As the chair of Lieff Cabraser’s Cybersecurity & Data Privacy group since its inception in 2016, Michael W. Sobol leads novel and challenging consumer protection class action lawsuits of first impression. Within the last few years, Michael’s cases have recovered over one billion dollars and have reformed the business practices for the benefit of tens of millions consumers nationwide. A two-time California Daily Journal “Top Cybersecurity Lawyer,” in 2025 Michael wa...

Monica Mazzei is a Shareholder in Buchalter’s San Francisco office and the chair of the Firm’s Family Law group. Monica is a Certified Family Law Specialist representing high net worth clients. She represents clients throughout California, with a concentration in San Francisco and Silicon Valley, as well as Los Angeles.

Michael Glaser is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Michael, who practices law in San Francisco, California, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Joshua D. White is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Joshua D., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joshua D. is held by other top lawyers in the same geographic and legal practice area.

Patrick J. Devine is a top attorney recognized by Best Lawyers in the practice area(s) of Securities / Capital Markets Law. Patrick J., who practices law in San Francisco, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick J. is held by other top lawyers in the same geographic and legal practice area.

Kevin J. Crabtree is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Kevin J., who practices law in San Francisco, California, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin J. is held by other top lawyers in the same geographic and legal practice area.

John Bartko is a Founder and a Principal of the firm. He represents both plaintiffs and defendants in complex civil, criminal and regulatory matters. He has represented many executives ensnared in complex regulatory investigations and has been involved in significant international discovery and complex investigations requiring foreign court appearances, including conducting examinations in Switzerland and Japan through pioneering requests for civil judicial assistance. He has traveled to Euro...